Ionic Bonding
Muhtasari
Table salt dissolves in water and conducts electricity when molten, yet it has a melting point above 800 degrees Celsius. These properties seem contradictory until you understand the bonding inside: oppositely charged ions locked together by powerful electrostatic forces in a giant lattice.
In this lesson you will learn how ions form by electron transfer, memorise the charges on common ions, write formulae for ionic compounds, draw dot-and-cross diagrams, and explain why ionic substances have high melting points yet conduct electricity only when molten or dissolved.
Malengo
- Understand how ions are formed by electron loss or gain
- Know the charges of common ions
- Write formulae for compounds formed between listed ions
- Draw dot-and-cross diagrams to show the formation of ionic compounds by electron transfer
- Understand ionic bonding in terms of electrostatic attractions
- Understand why compounds with giant ionic lattices have high melting and boiling points
- Know that ionic compounds do not conduct electricity when solid, but do conduct electricity when molten and in aqueous solution
Maelezo ya Somo
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Tathmini ya Somo
Hongera kwa kukamilisha somo la Ionic Bonding. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.
Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.
Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.
- What type of particle is formed when a sodium atom loses one electron? A) A negative ion B) A positive ion C) A molecule D) An isotope Answer: B
- What is the formula of calcium chloride? A) CaCl B) CaCl2 C) Ca2Cl D) Ca2Cl3 Answer: B
- Why do ionic compounds have high melting points? A) They contain molecules B) They have weak intermolecular forces C) Strong electrostatic forces act between oppositely charged ions in a giant lattice D) They are always solids Answer: C
- In which state can an ionic compound conduct electricity? A) Solid only B) Gas only C) Molten or in aqueous solution D) In any state Answer: C
- In a dot-and-cross diagram for MgO, how many electrons does magnesium transfer to oxygen? A) 1 B) 2 C) 3 D) 6 Answer: B
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Vitabu Vinavyopendekezwa
Fanya Mazoezi ya Maswali ya Majaribio
Ungependa kufanya mazoezi ya maswali ya majaribio kuhusu Ionic Bonding? Pakua programu ya Green Bridge CBT ili kupata maswali ya majaribio na tathmini kamili za mazoezi kuhusu mada hii.
Pakua Programu Kwenye Google Playstore
Kila kitu unachohitaji ili kufaulu katika JAMB, WAEC & NECO.
